Finding the Fourth Proportional to 18,310,228.20, 27,465,342.30 and 5,529,400.20
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Solution
The fourth proportional to 18,310,228.20, 27,465,342.30 and 5,529,400.20 is: 8,294,100.30
Step by Step Solution
- Step 1: Write the proportion equation
18,310,228.20 : 27,465,342.30 = 5,529,400.20 : x - Step 2: Convert to fraction form
18,310,228.20/27,465,342.30 = 5,529,400.20/x - Step 3: Cross multiply
18,310,228.20x = 27,465,342.30 × 5,529,400.20 - Step 4: Simplify right side
18,310,228.20x = 151,866,869,206,688.47 - Step 5: Solve for x
x = 151,866,869,206,688.47/18,310,228.20 - Step 6: Final answer
x = 8,294,100.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.